Formula: Enchant Shield - Major Stamina
Pattern-reselling is one of the oldest tools in any WoW gold farmer%26#8217;s arsenal. The practice of finding limited-sell patterns and recipes from vendors around Azeroth and reselling them for sometimes outrageous profits has been going on virtually since beta.
Here%26#8217;s a new Burning Crusade enchanting recipe that is going for quite a bit of WoW gold at the auction houses on most realms: Formula: Enchant Shield - Major Stamina. You can buy it from Madame Ruby (63,70) in Shattrath City.
This pattern is sold by the vendor for four WoW gold, which is a fairly steep price, but reports are that it is being re-listed on the auction house successfully for as much as 60 gold on some realms. I think a solidly conservative estimate (taking into account population and competition) is closer to 10-20 gold, however. Even if you can sell it for six WoW gold it would be worth the relatively small effort to buy it and re-list it.
You can learn all kinds of awesome gold-making strategies like this in Valkor%26#8217;s Gold-Making Guide. It%26#8217;s where I found about stuff like this myself - in Valkor%26#8217;s complete limited-sell pattern database. This has saved me hours and increased my gold yield by hundreds.